import datetime

# print((lambda x,y:x-y)(3,2))
def namedfunc(a):
    return "i'm %s"%a
def call_func(func,param):
    print(datetime.datetime.now())
    print(func(param))
    print("")

if __name__ == '__main__':
    call_func(namedfunc,'python')
    call_func(lambda x:x*x,9)
    call_func(lambda x:x*2,5)

